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The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
A cold start can be difficult for an engine due to higher viscosity of oil and fuel in cold temperatures. Generally speaking, diesel engines have more difficulty starting at low outside temperatures than gasoline engines, and electric engines have the most problems. Diesel engines do not use spark plugs to ignite the air fuel mixture and rely ...
Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.
Testing the cold start capability of an engine after three days in a cold chamber. (car maker facilities in the UK, 1945) Winter diesel fuel (also known as winter diesel, alpine diesel, or winterised diesel) refers to diesel fuel enhanced to prevent it from gelling in cold weather conditions.
Looking at reported cases, there seems to be a seven year spike in cases, and a nine-year spike. Cars seven years old have had their coolant go out-of-date and then have another two years for acid coolant to find its way into the head bolt wells and do the damage; the nine-year spike may be due to lease returns that are reconditioned at two years.
Engine: 4.6 L Northstar LD8 V8 4.6 L Northstar L37 V8: Transmission: 4-speed 4T80 automatic: ... starting during the 2010 model year, including those on the DTS. [12 ...
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A Cadillac Sedan DeVille, one of the models offered with the V8-6-4 engine. For the 1981 model year only, Cadillac offered a feature on its V8 engine called the V8-6-4. On this engine, up to four cylinders could be deactivated while cruising to save fuel.